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This oddball moon is one of the two that orbit the fictional planet Kylovixx XIII. It has been dubbed the "Pac-Man Moon" by researchers due to its gaping mouth-like crater/pit, but is otherwise known as Celestia. Her giant trench is a watery ocean that splits the moon and is filled with minerals from the moon's surface. Even weirder is that Celestia orbits perpendicularly to Kylovixx XIII's rotation and spins at a rapid pace to where you could see its face moving throughout the night. Researchers are unsure of the origins of both the crater and the trench, but are certain Kylovixx XIII's inhabitants wouldn't know either.
